Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quando Denizli era a província, qual era o número total de votos válidos?
 ###Tabelas: CREATE TABLE projects_in_india (projects_in_india_id AUTO_INCREMENT PRIMARY KEY, Power Plant VARCHAR, Producer VARCHAR, Location VARCHAR, State VARCHAR, Total Capacity (MWe) INT) CREATE TABLE singles:_10_7_titles_3_runner-ups (singles:_10_7_titles_3_runner-ups_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Surface VARCHAR, Opponent in the final VARCHAR, Score in the final VARCHAR) CREATE TABLE tennent's_scottish_cup (tennent's_scottish_cup_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Opponent VARCHAR, Venue VARCHAR, Result VARCHAR, Attendance INT, Scorers VARCHAR) CREATE TABLE current_codes (current_codes_id AUTO_INCREMENT PRIMARY KEY, Code VARCHAR, Subdivision name ( be ) (BGN/PCGN) VARCHAR, Subdivision name ( be ) (GOST) VARCHAR, Subdivision name ( ru ) (BGN/PCGN) VARCHAR, Subdivision name ( ru ) (GOST) VARCHAR, Subdivision category VARCHAR) CREATE TABLE results_by_province (results_by_province_id AUTO_INCREMENT PRIMARY KEY, Province VARCHAR, Registered voters INT, People voted INT, Valid votes INT, Invalid votes INT, Yes INT, Yes (%) VARCHAR, No INT, No (%) VARCHAR, Turnout (%) VARCHAR)  
SELECT COUNT Valid votes FROM results_by_province WHERE Province = Denizli